Chock for vehicle wheels



Jan. 27. W25.

GHOCK FOR VEHICLE WHEELS R W 4 m S v 2 E7 a 1. 7 I e F m 6 7 J w 2 Z w ,K NM A i A N n v W W i m ADoblc. Charles STA/ans.

m4 ATTORNEYS W. A. DOBLE ET AL.

CHOCK FOR VEHICLE WHEELS 2 Sheets-Sheet 2 IN VEN TOR Wilma a flable @fiwrlea J.Ez/wz4s.

Filed June 23, 1920 WITNESS WM ATTORNEYS f lJ'lT rt I wrnnmm A. nonnn AND cnannns s. or SAN frnancrsco, 'oe mronnm.

CHOCK FOB VEHICLE WHEELS.

Application filed June 23, 1920. Serial tlo. 391,025. 1 i

i To all whom it may concern:

Be it known that we, lVImnM A. DOBLE and CHARLES S. EVANS, citizens of the United States, and residents, respectively, of the city and county of" San Francisco, 'andof Berkeley, county of Alameda, State of California, have invented a new and useful Chock for Vehicle Wheels, of which the following is a specification.

Our invention relates to chocks.

A broad object of the invention is to provide a chock especially adapted for use on disk wheels. Lesser objects include the provision of a chock for disk wheels characterized by rugged strength, simplicity of parts and immobility when attached. a The invention possesses other objects and features of advantage, some of which, with the foregoing, willbe set forth in the folr lowing description of-the preferred form of our invention which is illustrated in the drawings accompanying and forming part of the specification. a [tie to be understood that we do not limit ourselves tothe showin made by the said drawings and descnpt on,

as we may adopt variations of the preferred form within the scope of ourfinvention as set forth in the claims.

Referring to the drawings: Fig. 1 is a plan view of a chock in accordance with our invention. The chock is'shown attached'to a'disk .wheel, port-ions ofwhich and thetire areshown in section; ,Fig'fQis aside view of the same, on a somewhat smaller scale: Fig. 3 is aside view, of a portion of the chock, parts being shown insection. Fig. 4 x

15a fragmentary view showing a modified portion of a'chock; Figs. 5, 6 and 7 are plan views of modified forms of our'invem tion. Fig.8 is an end view of the structure shown -in'Fig. 5'. Fig. 9518a side viewof the structure shownin Fig. 7.

A chock locked abouttlretire and rim of an automobile wheel, has proved to be one of the most effective measures yet devised for preventing theft or unauthorized use of the automobile. With the disk wheels, the

. chock which completely encircles tire and rim is ina plicable, and it-is therefore the purpose 0' our invention to supply a chock adapted for use withdisk wheels, that 1s, a chock in which provision is made for securing it abontthe tire and rim without connecting parts within the rim.

In terms of broad inclusion our chock comprises an open yoke formed of connected Preferably arms adapted to be and wheel. The free ends of the armsare engageable with opposite sides of the wheel which lies between such ends, and means are,

placed astride the tire provided for releasably locking the connected ends of the yol the removal of the chock from the wheel. that portion of the chock which would strike theground during rotation of the wheel is pointedso as to leave a char-\ acteristic imprint in the roadbed should the automobile be driven with the chock yOIl' one of the wheels.

The free ends of the yoke arms may be g closlng and engaging one of the nuts or the hub cap so that while the chock is in place, the Wheel cannot be removed. 7 Referring first to Fig. 1, a pair of arms to form an open yoke. Th e andrim 7 of the disk wheel, and the inner or free ends'8 and 9 of the arms are formed complementary to the inner surface, of the rim 7 and the disk 11. Pivotal movement of the, arms enables them to be straddled about the tire and rim, tightly enclosing them, or to be quickly detached therefrom.

fMeans are provided for locking the arms together to prevent separation of the arms and detachment of the chock. Pivoted by a pin 12 to the arm 3 is a channel section, arcuate retaining clamp or look 14; shaped so that itmay swingabout its pivot pin 12 to snugly embrace within its semi-circular expanse, the chock arms 2 and 3 when positioned on the wheel. Against the middle, the clamp is formed with a point 15 which will leave a characteristic mark in the road if the car is run with the chock in place. When embraced by the clamp, the yokearms cannot be separated, and the proportions of the parts are such that the opening pressuie of the arms upon the clamp is exerted in substantially a straight lineltl through the re. arms to prevent -'-2 and 3 are hinged together at one end bv the pivot pin 4 arms are curved so as to enclose the the 6 totlirow the clam free of the yoke provides means forlocking the clamp upon the -yok"e. #TheWupper meager the arm. .2

above the pin is countersunk on a slight taper. to. form a socket in which the tapered 1 end of the bolt-19isadapted toseat, With' Operating the lockjtoturnthe barreliand lift the bolt from the'socket permits theto be detachedfrom' the wheel.

I retain it in place and is protected within 1 thebolt in the socket, the clamp cannot be swung free from the yoke arms, which are. therefore securely held about the wheel.

blamp to'be swung back and the yoke arms The pin ,4 is headed over as shown to the clamp when the chock is locked on the wheel. The pin 12 which is exposed to at tack is provided'w-ith a headrecessed into it I one side of the clamp. The opposite end is,

threaded into the bossed side of the clamp and upset to fill the conically reamed end of the threaded hole. Any other suitable method may be used to prevent the pin from being. driv en out.

the hub the type of diskwheel shown, it is advisable to provide means for preventing the removal of the wheel while the chock is in place. This is accomplished by a bar'21, extending inwardly from and integral with the outer yoke arm 2. Thehub flange locking nuts 22 on the wheel, are preferably provided with an annular groove, and the end of the bar is formed with a socket 23 to enable it to be slipped over the nut, and flanges 24 to engage in the annular groove. The nut, when so enclosed, cannot be removed and its engage- 1 ment with the bar prevents the bar from being wrenched' outwardly in an effort to break the clamp. 14 or otherwise. f'ree the .phock from thelwheel. .If desired, the

"inner end of the .bar may be made as. in Fig. 4 in which asocket 26 is provided for the hub.- 0111 3 27; flanges 28 engaging under 'the hub cap. A suitable recess is provided for enclosin one of the hub flange nuts 29. Prefera 1y a web 31 on the bar closely follows theform of the disk 11, so that no prying means of any considerable size, can

e inserted between wheel and bar.

In Fi 5 we have shown another embodi-' ment 0 our invention, the arms being formed to suit it for use with another well known type of disk wheel, a portion of which is shown 1n section.

The chock comprises two arms 33 and 34 pivoted together by the pin 35, which is formed and secured in a manner similar to pin 12 already explained. The two arms are half-lapped together, agroove being formed in each, in which a complementary "36 "an the other is ada ted to seat. The arms thus interlock wit each other when closed upon the tire and rim as shown in Fi 5. A lock 37 of known type is arrange preferably in a bossed portion 38 adjacent the outer end of the arm '33 and controls the bolt'39 ada ted to engage the contiguous portion of t e .arm 34. With the bolt thrown, the interlocked arms are securely locked against pivotal movement. It should be noted that with each arm, the len ths of the respective lever-arms between ock, pivot pin and arm ends are such that destructive stresses are unlikely. Both arms are formed to provide the point 41 of the chock when locked in place on the wheel.

InFig. 6, we have shown a chock differing from that just explained in that the arm 42 is provided with a socket at its outer or tire end in which a. complementary stud 43 is adapted to be seated when the arms are closed upon a wheel. A look 44 of known type controls the bolt 46 which is adapted to engage the stud to lock the arms together. The end of the arm 42 is formed as a point 47 of the chock.. Since itis an easy matter to remove from A separate block 54, provided with a recess in which the portions 51 and 52 of the arms snu ly seat when the arms are closed 11 on a w eel, is provided with a lock 56 and olt 57 similar to lock 17 and bolt 19 already described in connection with Fi 1. As shown b the dotted line 58 in li igi 7, the side of t 1e block is curved up over the joint separating the arms, so that the insertion of a pr is prevented. The opposite end of the block is pointed, as in the other structures already described.

We claim: I

'1. A chock for a vehicle wheel comprising pivotally connected arms having free ends engageable with opposite sides of said wheel, means for enclosing said arms to prevent pivotal movement thereof, and locking means for securing said enclosing means upon said arms.

2. A chock for a vehicle wheel comprising pivotally connected arms having free ends engageable with oppositesides of said wheel, a recessed block for enclosin said arms adjacent their pivotal connection to seas-nee to prevent separation thereof. and locking means for preventing pivotal movement of said block when closed about said arms.

' 4. An automobile ioek comprising a check for a Wheel of the automobiie, and an arm on said chock engageable with a portion of said Wheei for preventing removal of the Wheel from its mounting.

5. An automobile lock comprising a chock for a wheel of theautomobile, and an arm on said check for rendering inaccessible the fastening means of said wheel.

6. A chock for a, vehicle'wheei having an arm projecting therefrom for rendering inaccessible a Wheel fastening means and means for engaging the free end of said arm with said Wheel structure.

, 7. The combination with a vehicle Wheel and means for fastening the same to its mounting of a chock having an arm for rendering said fastening means inaccessible; a head on said wheel structure, and means on the free end of said arm for engaging the arm with said head when the chock is in place. v

8. A chock fora vehicle wheel comprising arms forming an open yoke, and an extension on one of said armsfor rendering in accessible a Wheei'iastening means.

9. A chock for a. vehicle Wheei comprising an open yoke with arms having free ends engageahle with opposite sides of said Wl16l and means on said yoke for rendermg inaccessible a Wheel fastening means.

10. A chock for a vehicle wheel. compris= ing an open yoke with arms having free ends'engageable with opposite sides of said Wheel and means on said yoke engegeable with a Wheel fastening means and for rendering. said means inaccessible.

11. An automobile lock comprising. a

chock for a Wheel of the automobile and an arm on said. chock for preventing the loosening of the fastening means securing said Wheel to its mounting.

12in combination with a wheel of an automobile, of means for engaging 'and preventing removal of the hubcap of said Wheel, said means having an extension projecting outwardly beyond the perimeter of the Wheel so as to act as an obstruction to free rotation of said Wheel and means for locking said means upon the Wheel.

13. An automobile lock comprising a bar, key actuated locking means for securing the bar to a Wheel of an automobile so that thebar projects outwardly beyond the-perimeter of the Wheel and a cap on the inner end of the bar for reception of the hub cap of said Wheei.

14. An autcmobilelock comprising a bar,

key actuated locking means for securing yond the perimeter of the Wheel and the other end is disposed adjacent the hub of said Wheel. and a hub cap cover on said inner extended end: I In testimony whereof, We have hereunto set our hands WILLIAM. A. DUBLE. CHARLES S. EVANS.

end, said bar having a cutting die on its 

